一、What 引导的感叹句
“what”意为“多么… ”， 用作定语，修饰名词或名词性短语（被强调部分）。名词前可以有其它定语成分。它的用法主要有四种
1、what+a/an+形容词+可数名词单数+主语+谓语！
What an interesting story it is! 多么有趣的故事呀！
What a good girl she is! 她是多么好的一个女孩啊！
2、what+形容词+不可数名词+主语+谓语！
What heavy snow it is! 多么大的雪呀！
What bad weather is it? 多么糟糕的天气啊！
3、what+形容词+可数名词复数+主语+谓语。
What beautiful flowers they are! 多漂亮的花啊！
What good students they are! 他们是多好的学生啊！
4、表达强烈的情感时，口语中常省略后面的主语和谓语。
What a fine day ( it is)! 多么晴朗的天呀！
What red apples ( they are)! 多么红的苹果呀！
What a pity! 真遗憾！
What a shame!真遗憾!真可耻！
二、 How 引导的感叹句
“how”意为“多么”，用作状语，修饰形容词、副词、动词或者全句。 其主要用法也有四种
1、How+形容词+主语+谓语！例如：
How cold it is today! 今天多么冷呀！
How hot it is today! 今天多么热呀！
2、How+副词+主语+谓语！ 例如：
How happy they look! 他们显得多么高兴呀！
How fast he runs! 他跑得多么快呀！
3、How+主语+谓语（陈述句结构）！ 例如：
How he loves his son! 他多么爱他的儿子！
How time flies! 光阴似箭！
4、表达强烈激动的情感时，口语中常省略后面的主语和谓语。
How cool ( the weather is)! 好凉快呀！
How wonderful ( it is )! 好精彩呀！
三、 有时候What和How可以表达相同含义
1. What a hot day it is!
How hot the day is ! 多么热的天气呀！
2. What tall buildings they are!
How tall the buildings are! 多么高的楼房呀！
3. What bad weather it is!
How bad the weather is! 多么糟糕的天气呀！
4. What bright sunshine it is!
How bright the sunshine is! 多么明亮的阳光呀！
四、 感叹句中辨别what和how的有效方法：
最主要的是要找准句子的主语，主语前面最后一个单词如果是名词的话，就用what引导；如果主语前面最后一个词是形容词、副词、动词或没有词的话就用how引导。如：
_ ______ lovely weather we are having these days!
___ ____ beautiful your new dress is !
I miss my friends very much. _ _____ I want to see him.
五、趁热打铁
1._______ different life today is from what it was 20 years ago!
A. How B. What C. That D. Why
2. _______ terrible weather we've been having these days!
A. What B. What a C. How D. How a
3. ___ dangerous it is to ride fast on a busy road!
A.What B.What a C.How D.How a
4._______beautiful day it is! Let's go and have a picnic in the park.
A.How B.How a C.What D.What a
5.---______wonderful news report he wrote!
A.What a B.What C.Which D.Weather
6.—With the help of doctors,the boy can see again.
—______he is!
A.What luckly B.What a luck C.How luck D.How lucky
参考答案：四、what，how，how
五、AACDAD
